CVE-2021-42723
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedAdobe Bridge version 11.1.1 (and earlier) is affected by an out-of-bounds read vulnerability when parsing a crafted SGI file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceAdobe Bridge versions 11.1.1 and earlier contain an out-of-bounds read vulnerability when parsing malformed SGI (Silicon Graphics Image) files. The vulnerability allows reading past the end of allocated memory structures, which an attacker could leverage to achieve arbitrary code execution in the context of the current user. Exploitation requires user interaction—the victim must open a maliciously crafted SGI file.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data<= 15.4CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify if Adobe Bridge is installedCheck for Adobe Bridge installation by looking in typical install directories such as C:\Program Files\Adobe\Adobe Bridge (Windows) or /Applications/Adobe Bridge (macOS), or use system package managers or registry queries to detect the software.Affected if Adobe Bridge is present on the system
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Determine the installed Adobe Bridge versionOpen Adobe Bridge, then go to Help > About Adobe Bridge, or check the version in the application metadata. Alternatively, inspect the executable file properties or check the Windows Registry (HKLM\SOFTWARE\Adobe\Bridge) for the version value.Affected if The installed version is 11.1.1 or earlier
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Verify SGI file handling capabilityCheck if Adobe Bridge has SGI image file parsing enabled by examining the supported file format handlers or extensions. SGI files typically have .sgi or .rgb extensions. Confirm Bridge can preview or import these files.Affected if Adobe Bridge can process SGI image files and the version is 11.1.1 or earlier
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Inspect for recently opened SGI filesReview recent file access logs, Windows Event Viewer for application activity, or check the application's recent files list to see if any SGI files were opened.Affected if A maliciously crafted SGI file was opened in Adobe Bridge version 11.1.1 or earlier
You are affected if Adobe Bridge version 11.1.1 or earlier is installed and can process SGI image files, since the out-of-bounds read vulnerability triggers when parsing malformed SGI files.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpgrade Adobe Bridge to version 11.1.2 or later. Avoid opening untrusted SGI files from unknown or unverified sources.
Adobe Bridge 11.1.2 or later
- 1. Close Adobe Bridge if currently running
- 2. Open Adobe Creative Cloud desktop application or navigate to adobe.com
- 3. Locate Adobe Bridge in the applications list
- 4. Update Adobe Bridge to the latest version available (version 11.1.2 or later)
- 5. Restart Adobe Bridge after the update completes
- 6. Verify the installed version by opening Bridge and checking Help > About Adobe Bridge
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-42723 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2021-42723 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data